West Africa was not a single colony, it was actually made up of many colonies owned by France, the UK, and Portugal. Ivory Coast (France) and Ghana (UK) both have considerable white populations, a remnant of settler colonialism.
MA
A settler in or inhabitant of a colony
The Headright System
The first settlers moved to the Americas and established the Roanoke Colony.
The Gold Coast, that is, the British colony in west Africa from 1821, achieved independence from the United Kingdom in 1957. It was the first Sub-Saharan African nation in West Africa to achieve this.
Nigeria is the name of the British colony in West Africa.
MA
Nigeria
Morocco's West Sahara.
Non
A settler in or inhabitant of a colony
MA
Namibia/ South West Africa
Liberia. (Since the 1970's there haven't been any Colonies in West Africa, though).
It had both environments.
Portuguese Guinea (1474-1974)
There are no colonies left in Africa. The closest thing is West Sahara, which is partially controlled by Morocco.